Detachable vehicle-tire.



. E. AHN.

DETACHA EHICLE TIRE. PLICATION H b M 14 191 LE 1. 1,245,335; PatentedNov. 6, 1917.:

UNITED STATES PATENT ormon EDWARD JACOB HAHN, or MERRILL, IOWA.

nETAoHABLE VEHICLE-TIRE.

Application filed May 14, 1917.

The function of the improvement for which Letters Patent are asked, isto prevent side skidding, and to provide a rough-lock brake which willbe effective on icy hills and elsewhere when the wheels of the vehicleare forcibly held against rotation.

The invention aims to provide a structure of the kind mentioned whichwill be simple in construction, and capable of being mounted readily ona wheel: it provides novel means for holding the shoe on the wheel, andto provide astructure of the kind above mentioned, the spurs of whichmay be re-' newed readily when worn or broken.

It is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the presentinvention appertains.-

With the above and other objects in view which will appear as thedescription pro ceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in side elevation, a wheelequipped with the device forming the sub ject matter of thisapplication, parts being broken away i Fig. 2 is a cross sectionapproximately on the line 22 of Fig. 1; and

Fig. 3 is a cross section taken approximatcly on the line 3-3 of Fig. 1.

In the drawings, there is shown a wheel comprising in the presentinstance, but not of necessity, a hub 1 from which radiate spokes 2assembled with a telly 3 carrying the usual metallic tire Specificationof Letters Patent.

Patented Nov. c, 1917, Serial N0. 168,470. i

In putting the present invention into.

practice, there is provided a metal shoe 5 which istrough-shaped'i'ncross section, the shoe including a base 6 and side flanges 7. The shoe5 preferably is fashioned in one piece, and has sufficient resiliency toenable it to be placed about the the 4 of the wheel,

the base 6 abutting against the tread surface of the tire 4'. and theflanges 7V engaging the side edges of the tire, as clearly indicated inFig. The ends of the shoe are spaced slightly, as shown in Fig. 1. andare provided at their sides with sockets 8 through which bolts 9 arepassed, the bolts 9 carrying nuts 10. It is obvious that by tighteningup the nuts 10, the shoe 5 will be held upon the tire 4.

The invention includes any desired. num

ber of spurs 100 made of a good grade of iron and having, each, a hardsteel center G0, the spurs having wrench heads 11 and provided withthreaded shanks 12 received in openings 14 formed in the baseG of theshoe.v WVhon the shanks 12 are threaded into the openings 14, by meansof a wrench applied to the head 11, the inner ends of the shanks 12 bearagainst the tire 4 and prevent the shoe 5 from creepingeireumfercntially on the tire 4.

The device disclosed in this application is simple in construction andof few parts, but it will be found thoroughly eflieient for the objectshereinbefore pointed out. \Vhen any of the spurs 1O become worn orbroken, the worn or broken spurs may be threaded out of the base 5,0fthe shoe, and new spurs may be substituted therefor.

All portions of the structure, preferably, are made of metal.

It is to be observed that at the ends of the shoe 5, the flanges 7 arebroadened slightly as shown at 15, thereby enabling the sockets 8 to bespaced more widely than would otherwise be possible, from'the outerthread surface of the shoe. Owing to this construction, the sockets Sare not pressed into the ground, at each rotation of the wheel, as wouldbe the case. if the flanges 7 were not broadened as indicated at 15, thesockets 8 being located, as a consequence, close to the thread portionof the shoe and not as shown.

connecting said ends; and traction spurs In testimony that I claim theforegoing prqecting beyond the outer mn've of the us my own, I havehereto aflixed my signashoe and threaded Into the shoe, the threadturein the presence of two Witnesses.

ed portions of the spurs being of sufficient ED\VARD JACOB HAHN. lengthto permit the inner ends of the spurs Vitnesses:

to project beyond the inner curve of the G. H. BROWN,

shoe to form a tire-engaging holding-means. P. S. TRONSRUE.

Copies of this patent may be bbtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, D. 0.

